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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "dex_cache.h"
#include <stdio.h>
#include "art_method-inl.h"
#include "class_linker.h"
#include "common_runtime_test.h"
#include "handle_scope-inl.h"
#include "linear_alloc.h"
#include "mirror/class_loader-inl.h"
#include "mirror/dex_cache-inl.h"
#include "scoped_thread_state_change-inl.h"
namespace art {
namespace mirror {
class DexCacheTest : public CommonRuntimeTest {
protected:
DexCacheTest() {
this->use_boot_image_ = true; // Make the Runtime creation cheaper.
}
};
class DexCacheMethodHandlesTest : public DexCacheTest {
protected:
void SetUpRuntimeOptions(RuntimeOptions* options) override {
CommonRuntimeTest::SetUpRuntimeOptions(options);
}
};
TEST_F(DexCacheTest, Open) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<1> hs(soa.Self());
ASSERT_TRUE(java_lang_dex_file_ != nullptr);
Handle<DexCache> dex_cache(
hs.NewHandle(class_linker_->AllocAndInitializeDexCache(
soa.Self(), *java_lang_dex_file_, /*class_loader=*/nullptr)));
ASSERT_TRUE(dex_cache != nullptr);
// The cache is initially empty.
EXPECT_EQ(0u, dex_cache->NumStrings());
EXPECT_EQ(0u, dex_cache->NumResolvedTypes());
EXPECT_EQ(0u, dex_cache->NumResolvedMethods());
EXPECT_EQ(0u, dex_cache->NumResolvedFields());
EXPECT_EQ(0u, dex_cache->NumResolvedMethodTypes());
}
TEST_F(DexCacheMethodHandlesTest, Open) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<1> hs(soa.Self());
ASSERT_TRUE(java_lang_dex_file_ != nullptr);
Handle<DexCache> dex_cache(
hs.NewHandle(class_linker_->AllocAndInitializeDexCache(
soa.Self(), *java_lang_dex_file_, /*class_loader=*/nullptr)));
EXPECT_EQ(0u, dex_cache->NumResolvedMethodTypes());
}
TEST_F(DexCacheTest, TestResolvedFieldAccess) {
ScopedObjectAccess soa(Thread::Current());
jobject jclass_loader(LoadDex("Packages"));
ASSERT_TRUE(jclass_loader != nullptr);
StackHandleScope<3> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(hs.NewHandle(
soa.Decode<mirror::ClassLoader>(jclass_loader)));
Handle<mirror::Class> klass1 =
hs.NewHandle(class_linker_->FindClass(soa.Self(), "Lpackage1/Package1;", class_loader));
ASSERT_TRUE(klass1 != nullptr);
Handle<mirror::Class> klass2 =
hs.NewHandle(class_linker_->FindClass(soa.Self(), "Lpackage2/Package2;", class_loader));
ASSERT_TRUE(klass2 != nullptr);
EXPECT_OBJ_PTR_EQ(klass1->GetDexCache(), klass2->GetDexCache());
EXPECT_NE(klass1->NumStaticFields(), 0u);
for (ArtField& field : klass2->GetSFields()) {
EXPECT_FALSE(
klass1->ResolvedFieldAccessTest</*throw_on_failure=*/ false>(
klass2.Get(),
&field,
klass1->GetDexCache(),
field.GetDexFieldIndex()));
}
}
TEST_F(DexCacheMethodHandlesTest, TestResolvedMethodTypes) {
ScopedObjectAccess soa(Thread::Current());
jobject jclass_loader(LoadDex("MethodTypes"));
ASSERT_TRUE(jclass_loader != nullptr);
StackHandleScope<5> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(hs.NewHandle(
soa.Decode<mirror::ClassLoader>(jclass_loader)));
Handle<mirror::Class> method_types(
hs.NewHandle(class_linker_->FindClass(soa.Self(), "LMethodTypes;", class_loader)));
class_linker_->EnsureInitialized(soa.Self(), method_types, true, true);
ArtMethod* method1 = method_types->FindClassMethod(
"method1",
"(Ljava/lang/String;)Ljava/lang/String;",
kRuntimePointerSize);
ASSERT_TRUE(method1 != nullptr);
ASSERT_FALSE(method1->IsDirect());
ArtMethod* method2 = method_types->FindClassMethod(
"method2",
"(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;",
kRuntimePointerSize);
ASSERT_TRUE(method2 != nullptr);
ASSERT_FALSE(method2->IsDirect());
const DexFile& dex_file = *(method1->GetDexFile());
Handle<mirror::DexCache> dex_cache = hs.NewHandle(
class_linker_->FindDexCache(Thread::Current(), dex_file));
const dex::MethodId& method1_id = dex_file.GetMethodId(method1->GetDexMethodIndex());
const dex::MethodId& method2_id = dex_file.GetMethodId(method2->GetDexMethodIndex());
Handle<mirror::MethodType> method1_type = hs.NewHandle(
class_linker_->ResolveMethodType(soa.Self(),
method1_id.proto_idx_,
dex_cache,
class_loader));
Handle<mirror::MethodType> method2_type = hs.NewHandle(
class_linker_->ResolveMethodType(soa.Self(),
method2_id.proto_idx_,
dex_cache,
class_loader));
EXPECT_EQ(method1_type.Get(), dex_cache->GetResolvedMethodType(method1_id.proto_idx_));
EXPECT_EQ(method2_type.Get(), dex_cache->GetResolvedMethodType(method2_id.proto_idx_));
// The MethodTypes dex file contains a single interface with two abstract
// methods. It must therefore contain precisely two method IDs.
ASSERT_EQ(2u, dex_file.NumProtoIds());
ASSERT_EQ(dex_file.NumProtoIds(), dex_cache->NumResolvedMethodTypesArray());
ASSERT_EQ(0u, dex_cache->NumResolvedMethodTypes());
auto* method_types_cache = dex_cache->GetResolvedMethodTypesArray();
for (size_t i = 0; i < dex_file.NumProtoIds(); ++i) {
auto* method_type = method_types_cache->Get(i);
if (dex::ProtoIndex(i) == method1_id.proto_idx_) {
ASSERT_EQ(method1_type.Get(), method_type);
} else if (dex::ProtoIndex(i) == method2_id.proto_idx_) {
ASSERT_EQ(method2_type.Get(), method_type);
} else {
ASSERT_TRUE(false);
}
}
}
} // namespace mirror
} // namespace art